To use the screen, slide the film to be enlarged in place and set it for the size of enlargement, focusing roughly. Remove the film or plate and put the screen in its place. The camera may now be brought to a perfect focus with ease, as the black lines show up sharp and clear on the screen. When the focus has been determined the screen is removed and the film replaced.
The squares may be drawn from ¹⁄₄-in. size down to the smallest it is possible to make. For large views it is easier to focus with the smaller squares. If the squares are made to a certain size they can be measured when thrown on the screen and the degree of enlargement determined.—Contributed by R. H. Galbreath, Denver, Colorado.
¶The longitudinal carriage handle should never be held in the hand when cutting threads.
An Indian Snake Game
Throwing the Snow Snake in Tracks Made through the Snow with a Log: Each Player Tries to Get His Snake First Out at the End of the Track More Times Than His Opponents
Ask any Canadian Indian what a snow snake is, and he will tell you that it is a piece of twisted wood, such as a wild grape vine, about 5 or 6 ft. long, and 1 in. or over in thickness, stripped of its bark and polished. It is grasped with one hand in the center and given a strong forward throw at the tail end by the other hand, while at the same time the hold in the center is loosened. With a hard bottom and about 1 in., or more, of light snow on top—ideal conditions for playing the game—the Indian snake will travel for a long distance when thrown by an expert, and to a novice seeing the snake traveling along at a rapid speed, raising and lowering its head as the wood vibrates from side to side, its resemblance to the real reptile is perfect.
When the Indians have tests of skill with the snake they make tracks through the snow by drawing a log in it, and sometimes as many as a dozen tracks are made side by side, and a dozen snakes are sent along at once. The one who makes his snake emerge from the end of the track first the most times out of a certain number of throws, takes the prize. The trick of throwing the snake is not at all hard to acquire, and it makes an exciting game.—J. E. Noble, Toronto, Can.
Storage of Wood for Cabinetwork
When working with wood to be made into furniture, or other constructions of a high grade of workmanship, the ends of the finished pieces should be shellacked in order to prevent moisture from entering the ends. The ends are more susceptible to moisture, as the pores of the wood are exposed. The application of this remedy will often prevent warping or winding of boards, which is particularly distressing after a piece has been shaped to its final size.